"I only deemed it lawful to kill whoever claims that the sun is static (thābita la jāriya) and refuses to repent of this after clarification. This is because denying the circulation of the sun constitutes a denial of Allah (Glorified be He), His Great Book, and His Honourable Messenger. It is well established in the Din (religion of Islam) by way of decisive evidence and Ijma` (consensus) of scholars that whoever denies Allah, His Messenger or His Book is a Kafir (disbeliever), and their blood and wealth become violable. It is the duty of the responsible authority to ask them to repent of this; either they repent or be executed. Thanks to Allah that this issue is not debatable among scholars."
January 1, 1970
https://en.wikiquote.org/wiki/Abd_al-Aziz_ibn_Baz